89391960 has 192 divisors, whose sum is σ = 349689600. Its totient is φ = 19346688.

The previous prime is 89391959. The next prime is 89391997. The reversal of 89391960 is 6919398.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 46947 + ... + 48813.

It is an arithmetic number, because the mean of its divisors is an integer number (1821300).

Almost surely, 2^89391960 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89391960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174844800).

89391960 is an abundant number, since it is smaller than the sum of its proper divisors (260297640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

89391960 is a wasteful number, since it uses less digits than its factorization.

89391960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1910 (or 1903 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 45.

The square root of 89391960 is about 9454.7321485064. The cubic root of 89391960 is about 447.1289809916.

The spelling of 89391960 in words is "eighty-nine million, three hundred ninety-one thousand, nine hundred sixty".